The Sabbath candles symbolize the Light that comes unto us as a result of the corrections we perform during the six weekdays. When we light the Sabbath candles we should think about getting closer to the love of others. When the egoistic desire is corrected, it is called a soul and it operates with the intention of love and bestowal like the Creator. Why is it the woman who lights the candles, why do we cover the eyes, and why do we bless? These customs stem from spiritual roots that symbolize the corrections we have to perform. The wine symbolizes the Light of Hochma and the bread symbolizes the Light of Hassadim.